Home / 772,738.90-1,065,452.99-500,707.53

Finding the Fourth Proportional to 772,738.90, 1,065,452.99 and 500,707.53

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Solution

The fourth proportional to 772,738.90, 1,065,452.99 and 500,707.53 is: 690,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,738.90 : 1,065,452.99 = 500,707.53 : x
  2. Step 2: Convert to fraction form
    772,738.90/1,065,452.99 = 500,707.53/x
  3. Step 3: Cross multiply
    772,738.90x = 1,065,452.99 × 500,707.53
  4. Step 4: Simplify right side
    772,738.90x = 533,480,332,450.48
  5. Step 5: Solve for x
    x = 533,480,332,450.48/772,738.90
  6. Step 6: Final answer
    x = 690,375.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.